C++ (Cpp) guest_pagetable_flush_user Examples

Example #1

File: hypercalls.c Project: 274914765/C

/*H:120 This is the core hypercall routine: where the Guest gets what it wants.
 * Or gets killed.  Or, in the case of LHCALL_SHUTDOWN, both. */
static void do_hcall(struct lg_cpu *cpu, struct hcall_args *args)
{
    switch (args->arg0) {
    case LHCALL_FLUSH_ASYNC:
        /* This call does nothing, except by breaking out of the Guest
         * it makes us process all the asynchronous hypercalls. */
        break;
    case LHCALL_LGUEST_INIT:
        /* You can't get here unless you're already initialized.  Don't
         * do that. */
        kill_guest(cpu, "already have lguest_data");
        break;
    case LHCALL_SHUTDOWN: {
        /* Shutdown is such a trivial hypercall that we do it in four
         * lines right here. */
        char msg[128];
        /* If the lgread fails, it will call kill_guest() itself; the
         * kill_guest() with the message will be ignored. */
        __lgread(cpu, msg, args->arg1, sizeof(msg));
        msg[sizeof(msg)-1] = '\0';
        kill_guest(cpu, "CRASH: %s", msg);
        if (args->arg2 == LGUEST_SHUTDOWN_RESTART)
            cpu->lg->dead = ERR_PTR(-ERESTART);
        break;
    }
    case LHCALL_FLUSH_TLB:
        /* FLUSH_TLB comes in two flavors, depending on the
         * argument: */
        if (args->arg1)
            guest_pagetable_clear_all(cpu);
        else
            guest_pagetable_flush_user(cpu);
        break;

    /* All these calls simply pass the arguments through to the right
     * routines. */
    case LHCALL_NEW_PGTABLE:
        guest_new_pagetable(cpu, args->arg1);
        break;
    case LHCALL_SET_STACK:
        guest_set_stack(cpu, args->arg1, args->arg2, args->arg3);
        break;
    case LHCALL_SET_PTE:
        guest_set_pte(cpu, args->arg1, args->arg2, __pte(args->arg3));
        break;
    case LHCALL_SET_PMD:
        guest_set_pmd(cpu->lg, args->arg1, args->arg2);
        break;
    case LHCALL_SET_CLOCKEVENT:
        guest_set_clockevent(cpu, args->arg1);
        break;
    case LHCALL_TS:
        /* This sets the TS flag, as we saw used in run_guest(). */
        cpu->ts = args->arg1;
        break;
    case LHCALL_HALT:
        /* Similarly, this sets the halted flag for run_guest(). */
        cpu->halted = 1;
        break;
    case LHCALL_NOTIFY:
        cpu->pending_notify = args->arg1;
        break;
    default:
        /* It should be an architecture-specific hypercall. */
        if (lguest_arch_do_hcall(cpu, args))
            kill_guest(cpu, "Bad hypercall %li\n", args->arg0);
    }
}

Example #2

File: hypercalls.c Project: DirtyDroidX/android_kernel_htc_m8ul

static void do_hcall(struct lg_cpu *cpu, struct hcall_args *args)
{
	switch (args->arg0) {
	case LHCALL_FLUSH_ASYNC:
		break;
	case LHCALL_SEND_INTERRUPTS:
		break;
	case LHCALL_LGUEST_INIT:
		kill_guest(cpu, "already have lguest_data");
		break;
	case LHCALL_SHUTDOWN: {
		char msg[128];
		__lgread(cpu, msg, args->arg1, sizeof(msg));
		msg[sizeof(msg)-1] = '\0';
		kill_guest(cpu, "CRASH: %s", msg);
		if (args->arg2 == LGUEST_SHUTDOWN_RESTART)
			cpu->lg->dead = ERR_PTR(-ERESTART);
		break;
	}
	case LHCALL_FLUSH_TLB:
		
		if (args->arg1)
			guest_pagetable_clear_all(cpu);
		else
			guest_pagetable_flush_user(cpu);
		break;

	case LHCALL_NEW_PGTABLE:
		guest_new_pagetable(cpu, args->arg1);
		break;
	case LHCALL_SET_STACK:
		guest_set_stack(cpu, args->arg1, args->arg2, args->arg3);
		break;
	case LHCALL_SET_PTE:
#ifdef CONFIG_X86_PAE
		guest_set_pte(cpu, args->arg1, args->arg2,
				__pte(args->arg3 | (u64)args->arg4 << 32));
#else
		guest_set_pte(cpu, args->arg1, args->arg2, __pte(args->arg3));
#endif
		break;
	case LHCALL_SET_PGD:
		guest_set_pgd(cpu->lg, args->arg1, args->arg2);
		break;
#ifdef CONFIG_X86_PAE
	case LHCALL_SET_PMD:
		guest_set_pmd(cpu->lg, args->arg1, args->arg2);
		break;
#endif
	case LHCALL_SET_CLOCKEVENT:
		guest_set_clockevent(cpu, args->arg1);
		break;
	case LHCALL_TS:
		
		cpu->ts = args->arg1;
		break;
	case LHCALL_HALT:
		
		cpu->halted = 1;
		break;
	case LHCALL_NOTIFY:
		cpu->pending_notify = args->arg1;
		break;
	default:
		
		if (lguest_arch_do_hcall(cpu, args))
			kill_guest(cpu, "Bad hypercall %li\n", args->arg0);
	}
}